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This manual should give you an overview of some common Round Robin Database (RRD) issues we have seen over time. You can use this as a kind of checklist to go through for troubleshooting step by step. |
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After the RRD migration, some graphs are not recording values for some reason. See here how to debug that: After RRD migration Troubleshooting graph is not recording values after RRD migration
This can also happen after the migration from 1.6 → to 2.0 because we auto-convert the rrds: Debugging corrupted RRD files are messed up
Error during the rrd conversion
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If you face an issue not documented here, please use that manual How-to debug corrupted xml filel of pnp4nagios for a detailed debug.
The 'NoneType' object has no attribute 'text'
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OMD[mysite]:~$ cmk -v --convert-rrds --delete-rrds RRD8040
RRD8040:
HOST: RRD8040
ERROR: 'NoneType' object has no attribute 'text' |
Follow the manual Error Troubleshooting errors during the RRD conversion for resolution
The 'NoneType' object has no attribute 'replace'
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Please follow that manual to solve that: Error Troubleshooting errors during the RRD conversionconversion#xml.etree.ElementTree.ParseError:noelementfound:line1,column0
xml.etree.ElementTree.ParseError: unclosed token: line 114, column 0
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Please follow that manual to solve that: Error Troubleshooting errors during the RRD conversionconversion#xml.etree.ElementTree.ParseError:unclosedtoken:line114,column0
Error in cmc.log
after rrd migration
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To get rid of that, please follow that manual: Error handling with RRD files after conversion to the new format
Cannot create a graph
It seems like the .rrd file is missing. Please double-check with the cmc.log:
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OMD[mysite]:~$ tail -f var/log/cmc.log 2022-06-02 12:09:41 [4] [main] [rrd] [rrdcached at /omd/sites/mysite/tmp/run/rrdcached.sock] >> -1 No such file: /opt/omd/sites/mysite/var/check_mk/rrd/<HOSTNAME>/CPU_Utilization_Packet_CPU_1.rrd 2022-06-02 12:10:41 [4] [main] [rrd] [rrdcached at /omd/sites/mysite/tmp/run/rrdcached.sock] >> -1 No such file: /opt/omd/sites/mysite/var/check_mk/rrd/<HOSTNAME>/CPU_Utilization_Mgmt_CPU.rrd 2022-06-02 12:10:41 [4] [main] [rrd] [rrdcached at /omd/sites/mysite/tmp/run/rrdcached.sock] >> -1 No such file: /opt/omd/sites/mysite/var/check_mk/rrd/<HOSTNAME>/CPU_Utilization_Packet_CPU_0.rrd |
To solve that, please follow the manual: Cannot create graph How-to debug graphs not being created
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